Home / 206,489,623.16-309,733,056.90-83,666,128.52

Finding the Fourth Proportional to 206,489,623.16, 309,733,056.90 and 83,666,128.52

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Solution

The fourth proportional to 206,489,623.16, 309,733,056.90 and 83,666,128.52 is: 125,498,634.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,489,623.16 : 309,733,056.90 = 83,666,128.52 : x
  2. Step 2: Convert to fraction form
    206,489,623.16/309,733,056.90 = 83,666,128.52/x
  3. Step 3: Cross multiply
    206,489,623.16x = 309,733,056.90 × 83,666,128.52
  4. Step 4: Simplify right side
    206,489,623.16x = 25,914,165,745,487,868
  5. Step 5: Solve for x
    x = 25,914,165,745,487,868/206,489,623.16
  6. Step 6: Final answer
    x = 125,498,634.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.